4-9
Safe Torque Off
AC890PX AC Drive
Terminal Number
Terminal Name
Description
components and therefore sensitive to voltage polarity, it is
equivalent to a pair of relay contacts.
This output is on (equivalent to closed relay contacts)
when the STO circuit is in the ‘safe’ state, i.e. the drive
will not cause its motor to produce torque.
However, this output should be used primarily as an
indication. In the unlikely event of a fault in the STO
circuit, this output could turn on erroneously to give a false
indication of the STO status. It must not be used as a
guarantee that the motor will not produce torque.
X11/06
STO Status Positive
Together with X11/05, this terminal forms a volt-free
status output. See the description for X11/05.
Summary of Contents for AC890PX Series
Page 17: ...2 5 Product Overview AC890PX AC Drive 890PX bottom wire entry ...
Page 144: ...The Keypad 7 9 AC890PX AC Drive The Menu System Map ...
Page 145: ...7 10 The Keypad AC890PX AC Drive The Menu System Map continued ...
Page 328: ...Programming D 88 AC890PX AC Drive Functional Description ...
Page 386: ...Programming D 146 AC890PX AC Drive Setpoint Drive Frequency Frequency 1 Frequency 2 ...